HDF5 up to 1.14.6 H5Cimage.c H5C__reconstruct_cache_entry heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.12

Summaryinfo

A vulnerability identified as critical has been detected in HDF5 up to 1.14.6. This issue affects the function H5C__reconstruct_cache_entry of the file H5Cimage.c. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2025-6269. The attack requires local access. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as critical was found in HDF5 up to 1.14.6. Affected by this vulnerability is the function H5C__reconstruct_cache_entry of the file H5Cimage.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-6269. The exploitation appears to be easy. An attack has to be approached locally. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 279412 (HDF5 < 1.14.6 Heap-Based Buffer Overflow (CVE-2025-6269)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (279412), EUVD (EUVD-2025-18690) and CERT Bund (WID-SEC-2025-2907). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Red Hat Enterprise Linux

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 279412
Nessus Name: HDF5 < 1.14.6 Heap-Based Buffer Overflow (CVE-2025-6269)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/19/2025 Advisory disclosed
06/19/2025 +0 days VulDB entry created
12/22/2025 +186 days VulDB entry last update

Sourcesinfo

Advisory: 5579
Status: Not defined

CVE: CVE-2025-6269 (🔒)
GCVE (CVE): GCVE-0-2025-6269
GCVE (VulDB): GCVE-100-313273
EUVD: 🔒
CERT Bund: WID-SEC-2025-2907 - Red Hat Enterprise Linux AI (HDF5 ): Mehrere Schwachstellen erm&ouml;glichen Manipulation von Dateien

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/19/2025 08:24
Updated: 12/22/2025 13:12
Changes: 06/19/2025 08:24 (56), 06/19/2025 18:46 (30), 06/19/2025 20:48 (1), 06/24/2025 05:19 (1), 12/20/2025 02:17 (2), 12/22/2025 13:12 (7)
Complete: 🔍
Submitter: Rulkallos
Cache ID: 216:E3D:103

Submitinfo

Accepted

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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